Xabi Alonso has revealed he left Real Madrid for Bayern Munich because he was "curious" to find out Pep Guardiola's coaching secrets.
The 37-year-old swapped clubs in 2014 after five seasons at the Santiago Bernabeu, where he won six major trophies.
Alonso left Madrid three months after helping them to Champions League glory and went on to spend three years with Bayern before announcing his playing retirement.
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The former Liverpool midfielder made a total of 117 appearances and scored nine goals during his time with Bayern as the club won three Bundesliga titles and one DFB-Pokal.